Saginaw, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Saginaw, a city in Saginaw County, Michigan.
Tonight
52°F
Light Rain Likely
Rain likely. Cloudy. Low around 52, with temperatures rising to around 55 overnight. East northeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Saginaw
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Light Rain Likely | 7 mph ENE | 62% |
| Saturday | 66°F | Rain Showers Likely | 3 to 8 mph E | 68% |
| Saturday Night | 56°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 8 mph E | 68% |
| Sunday | 67°F | Chance Rain Showers | 7 to 15 mph NE | 26% |
| Sunday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 9 to 15 mph NE | 17% |
| Monday | 63°F | Mostly Cloudy | 12 to 16 mph NE | 3% |
| Monday Night | 48°F | Mostly Cloudy | 10 to 16 mph NE | 4% |
| Tuesday | 63°F | Partly Sunny | 12 to 16 mph NE | 9% |
| Tuesday Night | 50°F | Mostly Cloudy then Chance Rain Showers | 10 to 16 mph ENE | 34% |
| Wednesday | 64°F | Chance Rain Showers | 13 mph ENE | 40% |
| Wednesday Night | 50°F | Chance Rain Showers | 6 to 12 mph NE | 30% |
| Thursday | 66°F | Partly Sunny | 6 to 10 mph NE | 11% |
| Thursday Night | 50°F | Mostly Cloudy | 3 to 9 mph NNE | 9% |
| Friday | 70°F | Mostly Sunny | 3 to 10 mph N | 6% |
Forecast source: National Weather Service (api.weather.gov) for Saginaw (43.420, -83.950). Updated through the day.
Growing snapshot for Saginaw
Last spring frost
Apr 29
First fall frost
Oct 21
Growing season
175 days
Hardiness zone
6a
More local growing data for Saginaw: nearby ZIP 48607 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Birch Run
Bridgeport
Buena Vista
Burt
Chesaning
Frankenmuth
Freeland
Hemlock
Merrill
Oakley
Robin Glen-Indiantown
Shields
St. Charles
Zilwaukee
Climate data from the nearest NOAA station, Saginaw #3, Mi (1.8 mi from Saginaw). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.